/*div.layout{

  div.item{
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 240px;
    margin: 0.4em;
    div.content{
      height: 1.5em;
      line-height: 1.5em;
    }
    div.content::after{
      position: absolute;
      content: " ";
      border:3px solid #ff0000;
      border-radius: 3px;
      font-size: 3px;
    }
    div.btn{
      border-radius: 5px;
      border: 1px solid #000;
      padding: 0.1em 0.6em;
      display: none;
    }
  }
  div.item:hover>.btn{
    display: inline-block;
  }
}*/
div.layout{

  div.item{
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 240px;
    margin: 0.4em;
    div.content{
      height: 1.5em;
      line-height: 1.5em;
    }
    div.content::after{
      position: absolute;
      content: " ";
      border:3px solid #ff0000;
      border-radius: 3px;
      font-size: 3px;
    }
    div.btn{
      border-radius: 5px;
      border: 1px solid #000;
      padding: 0.1em 0.6em;
      display: none;
    }
    div.btn-show{
      display: block;
    }
  }

}